XS1930 Series User’s Guide
358
A
PPENDIX
B
Common Services
The following table lists some commonly-used services and their associated protocols and port numbers.
For a comprehensive list of port numbers, ICMP type/code numbers and services, visit the IANA (Internet
Assigned Number Authority) web site.
•
Name
: This is a short, descriptive name for the service. You can use this one or create a different one,
if you like.
•
Protocol
: This is the type of IP protocol used by the service. If this is
TCP/UDP
, then the service uses the
same port number with TCP and UDP. If this is
User-Defined
, the
Port(s
) is the IP protocol number, not
the port number.
•
Port(s)
: This value depends on the
Protocol
. Please refer to RFC 1700 for further information about port
numbers.
• If the
Protocol
is
TCP
,
UDP
, or
TCP/UDP
, this is the IP port number.
• If the
Protocol
is
USER
, this is the IP protocol number.
•
Description
: This is a brief explanation of the applications that use this service or the situations in which
this service is used.
Table 185 Commonly Used Services
NAME
PROTOCOL
PORT(S)
DESCRIPTION
AH (IPSEC_TUNNEL)
User-Defined
51
The IPSEC AH (Authentication Header) tunneling
protocol uses this service.
AIM/New-ICQ
TCP
5190
AOL’s Internet Messenger service. It is also used
as a listening port by ICQ.
AUTH
TCP
113
Authentication protocol used by some servers.
BGP
TCP
179
Border Gateway Protocol.
BOOTP_CLIENT
UDP
68
DHCP Client.
BOOTP_SERVER
UDP
67
DHCP Server.
CU-SEEME
TCP
UDP
7648
24032
A popular videoconferencing solution from
White Pines Software.
DNS
TCP/UDP
53
Domain Name Server, a service that matches
web names (for example
www.zyxel.com
) to IP
numbers.
ESP (IPSEC_TUNNEL)
User-Defined
50
The IPSEC ESP (Encapsulation Security Protocol)
tunneling protocol uses this service.
FINGER
TCP
79
Finger is a UNIX or Internet related command
that can be used to find out if a user is logged
on.
FTP
TCP
TCP
20
21
File Transfer Program, a program to enable fast
transfer of files, including large files that may not
be possible by email.
H.323
TCP
1720
NetMeeting uses this protocol.
HTTP
TCP
80
Hyper Text Transfer Protocol - a client/server
protocol for the world wide web.